Power Tools
A GUIDE TO
DRILLING POWER TOOL SPECIALISTS FESTOOL SHARE SOME ‘MUST-KNOWS’ ABOUT DRILLING.
Tips for identifying the construction material
Hammer and percussion drills.
Construction materials are not easy to identify in a shell. As soon as the wall is plastered or covered, the exact construction material is harder to identify. Carrying out a test drill with a small drilling diameter is the way to remedy this situation, making it easy to determine whatever is hidden under the surface:
A hammer drill works at a lower stroke rate, but with significantly greater impact energy than a percussion drill. This enables work to be completed more quickly. Hammer drilling in concrete requires less force than percussion drilling. Georg von dem Bussche, master carpenter and Festool trainer, recommends the BHC 18 hammer drill for harder construction materials such as concrete. →
Concrete Solid brick Aerated concrete Perforated brick Plasterboard Sand-lime-brick
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Very fine, white to grey drilling dust Red drilling dust Light grey, coarse-grained drilling dust Hollow spaces can be felt when drilling, light red drilling dust Hollow space behind the boards, fine white drilling dust Fine-grained, sandy white drilling dust
